$\int\frac{2x^3+x-1}{x^4+x^2}dx$
$\left(3d+3\right)+\left(3d+3\right)$
$\left(x\:+1\right)\left(x+4\right)\left(x-4\right)\left(x-1\right)$
$\left(8m+5\right)\left(8x-5\right)$
$\lim_{x\to0}\left(\frac{x^2sin\left(\frac{1}{x}\right)}{sin\left(x\right)}\right)$
$x-8\leq -14$
$3\left(-4x+5y\right)b-\left(-4x+5y\right)a^2$
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